Home / 12,955.68-19,433.92-4,190.64

Finding the Fourth Proportional to 12,955.68, 19,433.92 and 4,190.64

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Solution

The fourth proportional to 12,955.68, 19,433.92 and 4,190.64 is: 6,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.68 : 19,433.92 = 4,190.64 : x
  2. Step 2: Convert to fraction form
    12,955.68/19,433.92 = 4,190.64/x
  3. Step 3: Cross multiply
    12,955.68x = 19,433.92 × 4,190.64
  4. Step 4: Simplify right side
    12,955.68x = 81,440,562.51
  5. Step 5: Solve for x
    x = 81,440,562.51/12,955.68
  6. Step 6: Final answer
    x = 6,286.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.